55 |
* 22.12.2001 lock based interpolation |
* 22.12.2001 lock based interpolation |
56 |
* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
* 01.12.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
57 |
* |
* |
58 |
* $Id: decoder.c,v 1.32 2002-07-19 11:15:21 albeu Exp $ |
* $Id: decoder.c,v 1.37 2002-09-04 03:23:23 h Exp $ |
59 |
* |
* |
60 |
*************************************************************************/ |
*************************************************************************/ |
61 |
|
|
348 |
uv_dx = pMB->mvs[0].x; |
uv_dx = pMB->mvs[0].x; |
349 |
uv_dy = pMB->mvs[0].y; |
uv_dy = pMB->mvs[0].y; |
350 |
|
|
351 |
|
if (dec->quarterpel) |
352 |
|
{ |
353 |
|
uv_dx = (uv_dx >> 1) | (uv_dx & 1); |
354 |
|
uv_dy = (uv_dy >> 1) | (uv_dy & 1); |
355 |
|
} |
356 |
|
|
357 |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
uv_dx = (uv_dx & 3) ? (uv_dx >> 1) | 1 : uv_dx / 2; |
358 |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
uv_dy = (uv_dy & 3) ? (uv_dy >> 1) | 1 : uv_dy / 2; |
359 |
} else { |
} else { |
360 |
int sum; |
int sum; |
|
|
|
361 |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
sum = pMB->mvs[0].x + pMB->mvs[1].x + pMB->mvs[2].x + pMB->mvs[3].x; |
362 |
uv_dx = |
|
363 |
(sum == |
if (dec->quarterpel) |
364 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
{ |
365 |
(ABS(sum) / 16) * 2)); |
sum /= 2; |
366 |
|
} |
367 |
|
|
368 |
|
uv_dx = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
369 |
|
|
370 |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
sum = pMB->mvs[0].y + pMB->mvs[1].y + pMB->mvs[2].y + pMB->mvs[3].y; |
371 |
uv_dy = |
|
372 |
(sum == |
if (dec->quarterpel) |
373 |
0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + |
{ |
374 |
(ABS(sum) / 16) * 2)); |
sum /= 2; |
375 |
|
} |
376 |
|
|
377 |
|
uv_dy = (sum == 0 ? 0 : SIGN(sum) * (roundtab[ABS(sum) % 16] + (ABS(sum) / 16) * 2)); |
378 |
} |
} |
379 |
|
|
380 |
start_timer(); |
start_timer(); |
381 |
|
if(dec->quarterpel) { |
382 |
|
DEBUG("QUARTERPEL"); |
383 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos, |
384 |
|
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
385 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
386 |
|
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
387 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
388 |
|
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
389 |
|
interpolate8x8_quarterpel(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
390 |
|
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
391 |
|
} |
392 |
|
else { |
393 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, 16 * y_pos, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, 16 * y_pos, |
394 |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
pMB->mvs[0].x, pMB->mvs[0].y, stride, rounding); |
395 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos, |
396 |
16 * y_pos, pMB->mvs[1].x, pMB->mvs[1].y, stride, |
pMB->mvs[1].x, pMB->mvs[1].y, stride, rounding); |
397 |
rounding); |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos, 16*y_pos + 8, |
398 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos, |
pMB->mvs[2].x, pMB->mvs[2].y, stride, rounding); |
399 |
16 * y_pos + 8, pMB->mvs[2].x, pMB->mvs[2].y, stride, |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16*x_pos + 8, 16*y_pos + 8, |
400 |
rounding); |
pMB->mvs[3].x, pMB->mvs[3].y, stride, rounding); |
401 |
interpolate8x8_switch(dec->cur.y, dec->refn[0].y, 16 * x_pos + 8, |
} |
402 |
16 * y_pos + 8, pMB->mvs[3].x, pMB->mvs[3].y, stride, |
|
|
rounding); |
|
403 |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.u, dec->refn[0].u, 8 * x_pos, 8 * y_pos, |
404 |
uv_dx, uv_dy, stride2, rounding); |
uv_dx, uv_dy, stride2, rounding); |
405 |
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
interpolate8x8_switch(dec->cur.v, dec->refn[0].v, 8 * x_pos, 8 * y_pos, |
653 |
mb->quant = quant; |
mb->quant = quant; |
654 |
|
|
655 |
if (dec->interlacing) { |
if (dec->interlacing) { |
656 |
|
if (cbp || intra) { |
657 |
mb->field_dct = BitstreamGetBit(bs); |
mb->field_dct = BitstreamGetBit(bs); |
658 |
DEBUG1("decp: field_dct: ", mb->field_dct); |
DEBUG1("decp: field_dct: ", mb->field_dct); |
659 |
|
} |
660 |
|
|
661 |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
if (mb->mode == MODE_INTER || mb->mode == MODE_INTER_Q) { |
662 |
mb->field_pred = BitstreamGetBit(bs); |
mb->field_pred = BitstreamGetBit(bs); |
685 |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = |
686 |
mb->mvs[0].y; |
mb->mvs[0].y; |
687 |
} |
} |
688 |
} else if (mb->mode == |
} else if (mb->mode == MODE_INTER4V ) { |
689 |
MODE_INTER4V /* || mb->mode == MODE_INTER4V_Q */ ) { |
|
690 |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
get_motion_vector(dec, bs, x, y, 0, &mb->mvs[0], fcode, bound); |
691 |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
get_motion_vector(dec, bs, x, y, 1, &mb->mvs[1], fcode, bound); |
692 |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
get_motion_vector(dec, bs, x, y, 2, &mb->mvs[2], fcode, bound); |
706 |
rounding); |
rounding); |
707 |
} else // not coded |
} else // not coded |
708 |
{ |
{ |
709 |
//DEBUG2("P-frame MB at (X,Y)=",x,y); |
DEBUG2("P-frame MB at (X,Y)=",x,y); |
710 |
mb->mode = MODE_NOT_CODED; |
mb->mode = MODE_NOT_CODED; |
711 |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
mb->mvs[0].x = mb->mvs[1].x = mb->mvs[2].x = mb->mvs[3].x = 0; |
712 |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; |
mb->mvs[0].y = mb->mvs[1].y = mb->mvs[2].y = mb->mvs[3].y = 0; |
1212 |
#ifdef BFRAMES_DEC_DEBUG |
#ifdef BFRAMES_DEC_DEBUG |
1213 |
BFRAME_DEBUG |
BFRAME_DEBUG |
1214 |
#endif |
#endif |
1215 |
|
|
1216 |
switch (mb->mb_type) { |
switch (mb->mb_type) { |
1217 |
case MODE_DIRECT: |
case MODE_DIRECT: |
1218 |
get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
get_b_motion_vector(dec, bs, x, y, &mv, 1, zeromv); |
1219 |
|
|
1220 |
case MODE_DIRECT_NONE_MV: |
case MODE_DIRECT_NONE_MV: |
1221 |
{ // Because this file is a C file not C++ so I use '{' to define var |
{ |
1222 |
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
const int64_t TRB = dec->time_pp - dec->time_bp, TRD = dec->time_pp; |
1223 |
int i; |
int i; |
1224 |
|
|
1278 |
break; |
break; |
1279 |
|
|
1280 |
default: |
default: |
1281 |
//DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
DEBUG1("Not support B-frame mb_type =", mb->mb_type); |
|
; |
|
1282 |
} |
} |
1283 |
|
|
1284 |
} // end of FOR |
} // end of FOR |
1379 |
|
|
1380 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1381 |
// test if no B_VOP |
// test if no B_VOP |
1382 |
if (dec->low_delay) { |
if (dec->low_delay || dec->frames == 0) { |
1383 |
#endif |
#endif |
1384 |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
image_output(&dec->cur, dec->width, dec->height, dec->edged_width, |
1385 |
frame->image, frame->stride, frame->colorspace); |
frame->image, frame->stride, frame->colorspace); |
1386 |
|
|
1387 |
#ifdef BFRAMES_DEC |
#ifdef BFRAMES_DEC |
1388 |
} else { |
} else { |
1389 |
if (dec->frames >= 0) { |
if (dec->frames >= 1) { |
1390 |
start_timer(); |
start_timer(); |
1391 |
if ((vop_type == I_VOP || vop_type == P_VOP)) { |
if ((vop_type == I_VOP || vop_type == P_VOP)) { |
1392 |
image_output(&dec->refn[0], dec->width, dec->height, |
image_output(&dec->refn[0], dec->width, dec->height, |